When the economy sputters, people buy video games; better put, they buy Nintendo:
Nintendo sold 721,000 Wiis and 698,000 DSs during March. It looks like the shortages may not be so dire anymore; those are pretty amazing numbers for March. “Nintendo systems represented 58 percent of all video game hardware sold in March in the United States,” Cammie Dunaway, Nintendo of America’s executive vice president of Sales & Marketing said in reaction to the numbers. “We expect our momentum to continue with big upcoming game launches like Pokémon Mystery Dungeon, Mario Kart Wii and Wii Fit.”
And how does Nintendo compare to Sony and Microsoft? The below image is from Ars Technica:

For a more granular breakdown (top selling video game, etc.), check out the SuperSite Blog’s
US Video Game Sales
Too bad I still can’t seem to find a Wii in stores (then again, I’m not really trying). I have both a DS and a PSP, and while I think the PSP is an amazing machine, I prefer the DS’ simplicity. I don’t need “Playstation quality” games in a portable form factor. I just want something fun, and the DS does a great job at being fun (not to mention the variety of games…who would have known the stylus would be so innovative from a gaming perspective).
As for the non-portable bunch, I have the Gamecube, which suits me just fine, but I would like to try a few of the non-standard games offered by the Wii. The strength of the Wii has been driven by Nintendo-generated games. How that pans out over time with third party developers, well, we’ll just have to wait and see (are there really any good third party titles out there at the moment?).